Eileen Clifford was known for her charity and volunteer work in Long Island, N.Y.

Holmes was found guilty on several counts of wire fraud in 2022

Hugo Perez-Gabriel has been arrested in connection with the killing of 15-year-old Jonson Temaj

Luigi Mangione appeared in a Manhattan court on state charges in connection with the December killing of healthcare executive Brian Thompson

The accused killer of healthcare CEO Brian Thompson appeared in court on Friday, Feb. 21, wearing a bulletproof vest as supporters crowded into the courthouse

Kristin Carrier's body was found stabbed and wrapped in tarp in her boyfriend Robert Hendrix's home in October, per police

Mary Gingles was allegedly killed by her estranged husband Nathan Gingles, also accused of fatally shooting David Ponzer and Andrew Ferrin

Mary Gingles, her father, David Ponzer, and a neighbor, Andrew Ferrin, were found slain across two residences in Florida

Keir Johnson and her 8-month-old daughter Chloe Johnson disappeared after heading to the beach in April 2017

Keir Johnson and her 8-month-old daughter Chloe Johnson disappeared after heading to the beach in April 2017

Mary Gingles was found fatally shot in Florida, along with her father David Pozner and neighbor Andrew Ferrin, per police

'WHO IS LUIGI MANGIONE?' premieres on Monday, February 17 at 8/7c on Investigation Discovery and will stream on Max

James Riva II killed his grandmother Carmen Lopez after she asked him to do her laundry

The daughter of Greg and Kimberly Malnory had been sitting in her car seat for 18 hours after the 1997 murder

Norma J. Caraker, 60, was killed by her son Neil Howard in September 2023

Brent Sikkema was found stabbed to death at his home in Brazil in January 2024

David Perry was found fatally shot in a warehouse co-owned by his brother Charles Perry

George Levin was found bound in duct tape in January

Joseph Donohue was found dead on a houseboat last weekend after his family requested a welfare check on him

Isaac Blackhorse Garcia has been charged with murder